search for: n_pages

...emoving it from the guest system. > + * > + * Return: number of pages that were enqueued. > + */ > +size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages) > +{ > + struct page *page, *tmp; > + unsigned long flags; > + size_t n_pages = 0; > + > + spin_lock_irqsave(&b_dev_info->pages_lock, flags); > + list_for_each_entry_safe(page, tmp, pages, lru) { > + balloon_page_enqueue_one(b_dev_info, page); > + n_pages++; > + } > + spin_unlock_irqrestore(&b_dev_info->pages_lock, flags); > + return n...

...eue a balloon pages before definitively + * removing it from the guest system. + * + * Return: number of pages that were enqueued. + */ +size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, + struct list_head *pages) +{ + struct page *page, *tmp; + unsigned long flags; + size_t n_pages = 0; + + spin_lock_irqsave(&b_dev_info->pages_lock, flags); + list_for_each_entry_safe(page, tmp, pages, lru) { + balloon_page_enqueue_one(b_dev_info, page); + n_pages++; + } + spin_unlock_irqrestore(&b_dev_info->pages_lock, flags); + return n_pages; +} +EXPORT_SYMBOL_GPL(balloon_pa...

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v2->v3: * Fixing wrong argument type (int->size_t) [Michael] * Fixing a comment

...eue a balloon pages before definitively + * removing it from the guest system. + * + * Return: number of pages that were enqueued. + */ +size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, + struct list_head *pages) +{ + struct page *page, *tmp; + unsigned long flags; + size_t n_pages = 0; + + spin_lock_irqsave(&b_dev_info->pages_lock, flags); + list_for_each_entry_safe(page, tmp, pages, lru) { + balloon_page_enqueue_one(b_dev_info, page); + n_pages++; + } + spin_unlock_irqrestore(&b_dev_info->pages_lock, flags); + return n_pages; +} +EXPORT_SYMBOL_GPL(balloon_pa...

...ally adding to the balloon? > + * > + * Return: number of pages that were enqueued. > + */ > +size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages) > +{ > + struct page *page, *tmp; > + unsigned long flags; > + size_t n_pages = 0; > + > + spin_lock_irqsave(&b_dev_info->pages_lock, flags); > + list_for_each_entry_safe(page, tmp, pages, lru) { > + balloon_page_enqueue_one(b_dev_info, page); Do we want to do something about an error here? > + n_pages++; > + } > + spin_unlock_irqrestore(&...

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

VMware balloon enhancements: adding support for memory compaction, memory shrinker (to prevent OOM) and splitting of refused pages to prevent recurring inflations. Patches 1-2: Support for compaction Patch 3: Support for memory shrinker - disabled by default Patch 4: Split refused pages to improve performance v3->v4: * "get around to" comment [Michael] * Put list_add under page lock

...*/ > +int balloon_page_list_dequeue(struct balloon_dev_info *b_dev_info, > + struct list_head *pages, int n_req_pages) Are we sure this int never overflows? Why not just use u64 or size_t straight away? > +{ > + struct page *page, *tmp; > + unsigned long flags; > + int n_pages = 0; > + > + spin_lock_irqsave(&b_dev_info->pages_lock, flags); > + list_for_each_entry_safe(page, tmp, &b_dev_info->pages, lru) { > + /* > + * Block others from accessing the 'page' while we get around > + * establishing additional references and prepar...

...queues so we can dispatch IRQs */ spinlock_t lock; struct list_head virtqueues; }; struct virtio_pci_vq_info { + /* the actual virtqueue */ + struct virtqueue *vq; + /* the number of entries in the queue */ int num; - /* the number of pages the device needs for the ring queue */ - int n_pages; + /* the index of the queue */ int queue_index; - /* the struct page of the ring queue */ - struct page *pages; + /* the virtual address of the ring queue */ void *queue; - /* a pointer to the virtqueue */ - struct virtqueue *vq; - /* the node pointer */ + + /* the list node for the virtqu...

...queues so we can dispatch IRQs */ spinlock_t lock; struct list_head virtqueues; }; struct virtio_pci_vq_info { + /* the actual virtqueue */ + struct virtqueue *vq; + /* the number of entries in the queue */ int num; - /* the number of pages the device needs for the ring queue */ - int n_pages; + /* the index of the queue */ int queue_index; - /* the struct page of the ring queue */ - struct page *pages; + /* the virtual address of the ring queue */ void *queue; - /* a pointer to the virtqueue */ - struct virtqueue *vq; - /* the node pointer */ + + /* the list node for the virtqu...

...f pages that were enqueued. > >> + */ > >> +size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, > >> + struct list_head *pages) > >> +{ > >> + struct page *page, *tmp; > >> + unsigned long flags; > >> + size_t n_pages = 0; > >> + > >> + spin_lock_irqsave(&b_dev_info->pages_lock, flags); > >> + list_for_each_entry_safe(page, tmp, pages, lru) { > >> + balloon_page_enqueue_one(b_dev_info, page); > > > > Do we want to do something about an error here? > &g...

...ad *pages, int n_req_pages) > > > > Are we sure this int never overflows? Why not just use u64 > > or size_t straight away? > > size_t it is. > > > > >> +{ > >> + struct page *page, *tmp; > >> + unsigned long flags; > >> + int n_pages = 0; > >> + > >> + spin_lock_irqsave(&b_dev_info->pages_lock, flags); > >> + list_for_each_entry_safe(page, tmp, &b_dev_info->pages, lru) { > >> + /* > >> + * Block others from accessing the 'page' while we get around > >&g...

...es. Returns: pointer to the page struct of the dequeued page, or NULL if no page gets dequeued. > */ > struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info) > { @@ -177,9 +186,9 @@ struct page *balloon_page_dequeue(struct > balloon_dev_info *b_dev_info) > if (n_pages != 1) { > /* > * If we are unable to dequeue a balloon page because the > page > - * list is empty and there is no isolated pages, then > something > + * list is empty and there are no isolated pages, then > something > * went out of track and some balloon pag...

...LLOON_INFLATE); @@ -47,6 +46,7 @@ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); list_for_each_entry_safe(page, tmp, pages, lru) { + list_del(&page->lru); balloon_page_enqueue_one(b_dev_info, page); n_pages++; } @@ -128,13 +128,19 @@ struct page *balloon_page_alloc(void) EXPORT_SYMBOL_GPL(balloon_page_alloc); /* - * balloon_page_enqueue - allocates a new page and inserts it into the balloon - * page list. + * balloon_page_enqueue - inserts a new page into the balloon page list. + * * @b_de...

...LLOON_INFLATE); @@ -47,6 +46,7 @@ size_t balloon_page_list_enqueue(struct balloon_dev_info *b_dev_info, spin_lock_irqsave(&b_dev_info->pages_lock, flags); list_for_each_entry_safe(page, tmp, pages, lru) { + list_del(&page->lru); balloon_page_enqueue_one(b_dev_info, page); n_pages++; } @@ -128,13 +128,19 @@ struct page *balloon_page_alloc(void) EXPORT_SYMBOL_GPL(balloon_page_alloc); /* - * balloon_page_enqueue - allocates a new page and inserts it into the balloon - * page list. + * balloon_page_enqueue - inserts a new page into the balloon page list. + * * @b_de...

...be dequeued. + * + * Returns: struct page address for the dequeued page, or NULL if it fails to + * dequeue any pages. */ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info) { @@ -177,9 +186,9 @@ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info) if (n_pages != 1) { /* * If we are unable to dequeue a balloon page because the page - * list is empty and there is no isolated pages, then something + * list is empty and there are no isolated pages, then something * went out of track and some balloon pages are lost. - * BUG() here, otherwise...

...+ * until all pages can be dequeued. + * + * Returns: struct page for the dequeued page, or NULL if no page was dequeued. */ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info) { @@ -177,9 +184,9 @@ struct page *balloon_page_dequeue(struct balloon_dev_info *b_dev_info) if (n_pages != 1) { /* * If we are unable to dequeue a balloon page because the page - * list is empty and there is no isolated pages, then something + * list is empty and there are no isolated pages, then something * went out of track and some balloon pages are lost. - * BUG() here, otherwise...

...struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret = 0; diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index 76d95b5e289c..e7d12e93b1f0 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -307,7 +307,7 @@ static void vgem_unpin_pages(struct drm_vgem_gem_object *bo) mutex_unlock(&bo->pages_lock); } -static int vgem_prime_pin(struct drm_gem_object *obj) +static int vgem_prime_pin(struct drm_gem_object *obj, struct device *dev) { struct drm_vgem_gem_object *bo = to_vgem_bo(obj); long n_pages = obj->size >&gt...

...struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret = 0; diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index 76d95b5e289c..e7d12e93b1f0 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -307,7 +307,7 @@ static void vgem_unpin_pages(struct drm_vgem_gem_object *bo) mutex_unlock(&bo->pages_lock); } -static int vgem_prime_pin(struct drm_gem_object *obj) +static int vgem_prime_pin(struct drm_gem_object *obj, struct device *dev) { struct drm_vgem_gem_object *bo = to_vgem_bo(obj); long n_pages = obj->size >&gt...

...struct radeon_bo *bo = gem_to_radeon_bo(obj); int ret = 0; diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index 76d95b5e289c..e7d12e93b1f0 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -307,7 +307,7 @@ static void vgem_unpin_pages(struct drm_vgem_gem_object *bo) mutex_unlock(&bo->pages_lock); } -static int vgem_prime_pin(struct drm_gem_object *obj) +static int vgem_prime_pin(struct drm_gem_object *obj, struct device *dev) { struct drm_vgem_gem_object *bo = to_vgem_bo(obj); long n_pages = obj->size >&gt...